Apparatus for dispensing beverages



FPW. AND C. L. HOLDERLE. APPARATUS [FOR DISPENSING BEVERAGES. APPucmou FILED numzs. ma.

Patented Mar. 9,1920. 2 SHEETS-SHEET l- ];gl 50 r w -u" I Ell-III F hw. Arm 0. L. "0mm.

APPARATUS FOR DISPENSING BEVERAGES.

APPLICATION FILED AUG. 2a. 19w.

Patented Mar. 9,1920.

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UNITED STATES PATENT OFFICE.

FREDERICK W. HOLDERLE AND CARL L. HOLDERLE, OF ROCHESTER, NEW YORK.

To all whom- 1'25 may concern:

Be it known that we, FREDERICK HoL- DERLE and CARL L. HOLDERLE, citizens of the United States, residing at Rochester, in the county of Monroe and State of New York, have invented new and useful Improvements in Apparatus for Dispensing Beverages, of which the following is a specification.-

This invention relates to an apparatus for dispensing beverages and it has for its object the provision of an automatic apparatusfor this purpose which is simple and compact in construction, so that the same can be readily transported, which has a large capacity so that a large number of people can be served without necessitating stopping of the apparatus to replenish the same, and, which also maintains the various ingredients of the beverage before they are mixed, and also after they are mixed, in a cool condition without involving undue expense for accomplishing this purpose. In the accompanying drawings:

Figure 1 is a vertical section of the apparatus embodying our improvements taken on line 1-1, Fig. 2. Fig. 2 is a horizontal section of the same taken on line 2- 2, Fig. 1. Fig. 3 is a top plan'view of the pumping device and associated parts whereby the syrup and water are delivered from the sources of supply of theseingredients to the chamber in which the same are mixed and carbonated. Fig. 4 is a diagrammatic view showing the electric circuit of the motor which operates the pumping device and the switch for controlling the circuit. Fig. 5 is a fragmentary horizontal section, on an enlarged scale. taken on line 5-5, Fig. 1. Figs. 6 and 7 are fragmentary vertical sections taken .on the correspondingly numbered lines in Fig. 2.

Similar characters of reference indicate corresponding parts throughout the several views. j

The inclosing casing, shell or housing of this apparatus may be of any suitable construction, but as shown in Figs. 1 and 2, the

same is preferably constructed in the form of a barrel, the. body 10 of which is of bilge form andarranged upright and provided at its lower end with a lower fixed head or bottom 11 and at its upper end with a removable head or lid 12 which latter permitsv access to the interior of the space within the housing from the upper end thereof. Within the lower part of the 10 1.5".

' Specification of Letters Batent.

-tal partition within the same.

APPARATUS FOR DISPENSING BEVERAGES.

Patented Mar. 9, 1920;

Application filed August 28, 1919. Serial No. 320,352.

ing the same is provided with a horizontal partition 13 extending forwardly from its rear side and terminating short of the front side thereof, and an upright partition 14 extending fr'om the front edge of the horizontal partition to the top of the housing, thereby dividing'the space within the housing into a cooling chamber 15 which occupies the upper rear part of the housing and an L- shaped pumping chamber 16 which isarranged in the front and the lower parts of the housing. Access to this pumping chamber is afforded through a door 17 which controls an opening in the front side of the housing and which forms a section of the barrel body.

Within the cooling chamber of the hous ingis arranged a lining 18 of sheet metal or adapted tobefilled with ice or other refrigcrating agent for the purpose of malntaining the material stored therein at a low tem-v perature.

Vithin a portion of the cooling chamber, for instance ,that part adjacent to the right hand end thereof, is arranged a water tank 20 of metal or other suitable material which 'is supported so that its bottom is arranged a short distance above the bottom of the cooling chamber. The top of this water tank is provided with a removable cover 21 to afford access to the interior of the same for cleaning, inspection and repairing. Water is supplied to this water tank from any su1table source and in any suitable manner, but

preferably under pressure from a service pipe 22 which extends upwardly through the bottom of the housing and the horizon- Below the water tank is arranged a water cooling coil 23 which is submerged by the ice in the cool ing chamber and has its inlet end connected with the'water supply pipe while its outlet end opens into the upper portion of the water tank, whereby' the water is cooled before it is discharged into the tank. In order to maintain a constant supply of water in the tank and avoid interruption in the operation of the apparatus, means are pro,

vided whereby the admission of water into body so as to swing vertically and provided at its opposite end with a float 28 which rests on the water in the tank while its intermediate part is pivotally connected with the valve 25, as shown in Figs. 2 and 7. When the level of the water in this tank drops below normal, the descent of the float 28' with the water causes the valve 25 to be opened and admit water from the sourceof supply into the tank, and when the level of the water in the latter has again reached normal, or somewhat above the same, then the rising movement of the float with the water causes this valve to be again closed, thereby arresting the further entrance of water into the tank and preventing the apparatus from becoming'flooded. By this means, the supply of water for the apparatus is automatically replenished without requiring any personal attention or manual work for this purpose.

In the central part of the cooling chamber and preferably adjacent to the left-hand side of the water tank is arranged a syrup tank 29 which is adapted to contain a supply of liquid syrup of any suitable flavor or character which is to be mixed with water and carbonic acid gas preparatory to being served to the patrons. This tank has its lower end arranged above the horizontal partition of the cooling chamber, and its upper end is provided'with a removable lid 30 which covers an opening through which the syrup is introduced into the syrup tank as required. I

The outlets of the water and syrup tanks are provided with strainers 200, 209 ofany suitable construction to prevent any coarse material from leaving these tanks.

Within the left-hand portion of the cooling chamber is arranged a mixing chamber 31 which receives the water and syrup from the tanks 20, 29, and also receives carbonic acld gas, WlllCll ingredients are mixed within thls chamber and stored therein, preparatory tobeing served to patrons. This mixing chamber is closed on all sides but its top 32 is removably secured to the upright walls of this tank by means of bolts 33 so as to afi'ord access to the interior of the mixing chamber whenever this is required for c1eaning, inspection or repair. The walls of part of the mixing chamber by means of a:

lower fitting A check valve 91 is arranged in the carbonic acid gas pipe 3i for preventing back flow. Between this lower fitting and an upper fitting 36 communicating with the upper part of the mixing chamber is arranged a transparent gage or sight glass 37 which permits the attendant to observe the height of the liquid within the mixing chamber. In order to enable the attendant to determine the amount of pressure within the mixing chamber, a pressure gage 38 is connected with the upper fitting, and for the purpose of preventing undue pressure within the mixing chamber, a safety valve 39 is connected with the lower fitting which safety valve is set to blow off whenever the pressure within the mixing chamber exceeds a predetermined point.

Any suitable means may be provided for withdrawing the mixed liquid beverage from the mixing chamber and serving the same to the public, but this is preferably accomplished by means of a final cooling coil 40 which is arranged in the cooling chamber below the syrup and water tanks, and has its inlet end connected with the lower part of the mixing chamber while its outlet end extends to the exterior of the housing and is provided with a serving valve or spigot 41 from which the beverage may be filled into glasses and served to the patrons. A shelf 42 may be attached to the exterior of the housing immediately below the serving spigot for the purpose of supporting the serving glass while the same is being filled, and an emergency'valve 43 may also be provided between the outlet of the mixing chamber and the inlet of the final cooling coil, for the purpose of cutting off communication between these two members whenever this may become necessary while making repairs or adjustments of parts.

In order to prevent the salt water or brine resulting from the melting ice in the cooling chamber from rising too high therein, and entering the syrup and Water tanks, an overflow pipe 44 is provided which has its inlet end arranged within thecooling chamber on a line preferably above the 'top of the mixing chamber and below the top of the syrup and Water tanks, while the outlet end of this pipe extends to the exterior of the housing. I

Means are provided for automatically delivering syrup and water from the tanks 20,

eating in the latter.

ing the same quality 0 beverage without re quiring any personal attention for accomplishing this purpose. The means whereby this is effected may be variously constructed,

but those which are shown in the drawings are suitable and constructed as follows:

45 represents the .cylindrical barrel of a water pump and 46 the plunger reciprocat ing therein, and 47 the cylindrical barrel of a syrup pump and 48 the plunger recipro- These pump barrels are preferably arranged upright on opposite ends of a base plate 49 and the plungers thereof aremreciprocated by means of a horizontal driving shaft 50journaled in a bearing 51 on the base and provided at its opposite ends with cranks 52, 53', which are connected by pitmen 54, 55, with the plungers of the water, and syrup pump barrels, respectively. The inlet of the water pump barrel is connected b means of a pipe 56 with the bottom of -t e water tank, which pipe contains a check valve 57 for revent-' ing the water fromflowing bac through this pipe. The inlet of the syrup pump barrel is similarly connected with the lower part of the syrup tank by means of a- "pipe 58 which latter also contains a check valve 59 for preventing the syrup from Iflowing backwardly through this pipe. The

outlet of the water pump barrel is connected with a discharge pipe 60 containing a nonreturn' check valve'61 and the syrup pump barrel has its outlet connected with a discharge pipe 62 containing a non-return check valve 63. 64 represents an airdome which has its inlet connected with the delivery ends of the discharge pipes 60, 62, of the water and syrup pumps, and provided with a check valve 65, while the outlet of the air dome is connected-"by means of a pipe 66 with the upper part of the mixing chamber..

Upon rotating the driving shaft 50, syrup and waterare simultaneously delivered by the two pumps from the syrup and water tanks to the mixing chamber through the medium of the piping connecting these ele ments, and at the same time carbonic acid gas is supplied to the mixing .chamber I throughthe pipe 34, so that the liquid is carbonated within the mixing chamber prel- .paratory-to' bein'gdrawn off through th service valve 41 When serving beverages of this cha'racter to the public, the quantity of water in the mixture usually predominates overthe syrup contained therein, and this' proportion is' usuallygoverned. by taste and cost of materials. The two pumps which supply the syrup and; water simultaneously to the mixing chamber are therefore so organized that they continuously supply these liquidate the.

ardly mixing chamber in a definite, proportion relatively to each other, for instance, one

part of syrup to five parts of' water. -In order to permit of varying this proportlon, means are provided for varyin the capacity of one of the pumps with re erence to the other. This is accomplished in the present instance by mounting the crank '53 of the syrup pump on the driving shaft, so that it be clamped in various positions therein, by

means of a nut 70. By this means the throw of the plunger of the syrup pump may be increased or diminished so as'to vary the amount of syrup which is transferred from the syrup tank into the mixing chamber, and thus vary the proportion of syrup and water in the mixture while the quantity of water which is supplied by the water pump remains constant.

Any suitable motor may be employed for operating the pump driving shaft, and this motorv 1s preferably controlled by means which are responsive to' variations in the level of the liquid in the mixing chamber,

so that the delivery of liquid into the mixng chamber is arrested when-the level there 1n rises above the normal, while the delivery of liquid into this chamber is resumed when the level therein drops .below the normal. The motor 71 for this purpose shown in the drawings, is electrically operated and its power is transmitted to the driving shaft of thepumps by means of a countershaft 72 journaledin suitable bearings on the motor frame-and provided at one end with a gear wheel 73 which meshes with a pinion 74 on the .motor shaft, while its opposite end is provided with a pinion 75 which meshes with a gear' wheel 7 6 on the driving shaft, as best shown in Figs. 1 and 3.- The electric motor receives its power from a battery 77 or other electric source arranged in circuit therewith, which circuit also con-' tains a switchwhereby the same may be i opened and closed. for starting andstopping the motor. This switch, as shown in Figs.

land 4,- comprises a fixed contact'78 and a movable contact 79 which are adapted to be: connected and disconnected by means of a rock arm 80 carrying the movable contact.

This rock arm is mounted on a rock shaft 81 which is journaled in a suitable bearing and extends through a stufi'ing box in the lower part of the mixing chamber. Within the upper-part of the mixing chamber and suitablypivoted on the wall thereof, is a vertically swinging rock lever 82 one arm of which carries a float 83 resting on the liquid within the mixing chamber while the other arm is connected by means of a rod 84 with a rock arm 85 secured to the inner end of the rock shaft 81, as shown in Figs. 1, 2 and 6. When the level of the liquid in the mixing chamber rises above normal the float 83 operates to disengage the movable contact 69 from the fixed contact, thereby arresting the operation of the electric motor and stopping the delivery of liquid by the pumps to the mixing chamber, and when the level of the liquid in the mixing chamber drops below normal, the descent of the float at this time causes the switch contacts to be closed, and'the electric motor to be operated, so that the pumping of syrup and water into the mixing chamber is resumed until the normal level is again restored therein.

Means are provided for agitating the liquid within the mixing chamber, so that the constituents of the beverage become thoroughly intermingled before the same are served to the public. This is accomplished in the present instance by means of a revoluble agitator comprising a plurality of blades 86 arranged within the lower part of the mixing chamber and mounted on a horizontal shaft 87 which is journaled in bearings on the walls of the mixing chamber, and a chain belt 88 passing around driving and driven sprocket wheels 89, 90, secured respectively to one end of the pump driving shaft and one end of the agitator shaft,

outside of the mixing chamber. It follows from this construction that whenever the pumps are operated for delivering syrup and water into the mixing chamber, that the agitator is operated simultaneously for thoroughly mixing the ingredients of the beverage.

The pumping mechanlsm and assoclated parts as well as the means for driving the agitator are arranged in the L-shaped compartment between the front wall and bottom of the housing and on horizontal and vertical partitions where the same are conveniently accessible to the attendant through the opening on the front side of the housingand also through the top thereof, while the mixing chamber and the syrup and Water tanks are arranged in the cooling chamber between the rear wall of the housing and said partitions and accessible through the opening in the top of the housing for such attention as they require. The pumping mechanism and parts associated therewith are therefore kept away from the brine of the cooling a ent which reduces to a mini-' Owing to the compact construction of this beverage dispensing apparatus, the same can be readily installed in places where only a limited amount of space is available, and the same can be also very readily transported from place to place. Furthermore, all mechanical devices are completely concealed from view inasmuch as they are all contained within the housing, thereby not only increasing the interest of the patrons in this apparatus, but also rendering the product which is sold more appetizing.

We claim as our invention:

1. An apparatus for dispensing beverages comprising a cooling chamber, a mixlng chamber arranged within the cooling chamber and having an inlet and an outlet, a cooling coil arranged in the cooling chamber and having one end connected with the outlet of the mixing chamber, a dispensing valve connected with the opposite end of said coil, a water tank having an outlet connected with said mixing chamber and also having an inlet, and a water cooling coil arranged in said cooling chamber and having one end connected with a water supply while its opposite end is connected with the inlet comprising a cooling chamber, a mixing chamber arranged within the cooling chamber and having an inlet and an outlet, a cooling coil arranged in the cooling chamber and having one end connected with the outlet of the mixing chamber, a dispensing valve connected with the opposite end of said coil, a'watertank having an outlet connected with said mixing chamber and-also having an inlet, a water cooling coil arranged in said cooling chamber and having one end connected with a water supply while its opposite end is connected with the inlet of said water tank, and a syrup tank arranged in said cooling chamber and having an outlet which is connected with said mixing chamber. a

3. An apparatus for dispensing beverages comprising a housing having a horizontal partition extending forwardly from the rear wall of the housing and a vertical partition extending upwardly from the front end of said horizontal partition, a water tank, a syrup tank and a mixing chamber arranged in said housing between the rear wall thereof and said partitions, and a umping device for transferring the liquld from said tanks to said mixing chamber and arranged between the front wall and bottom of. said housing and said partitions.

FREDERICK w. HOLDERLE. CARL .L. HOLDERLE. 

